For today's climbing business, Starbucks will have to think outside the box and totally redesign their basic layout. Drive-through is too far away from the population, rap-through is the way to go.
Build 'em at the top of established raps with a nice deck to sit on and gaze at the view, sipping your latte while you wait your turn to rap down. Of course, the peace and quiet of the natural scene isn't stimulating enough for many climbers, so a rock-concert quality speaker system will be needed to pump out heavy metal music to recreate the gym atmosphere that is now most associated with climbing.
Equip the deck with multiple rap anchors so that several parties can descend simultaneously. Of course there is a fee for using these anchors, paid for by swiping a credit card.
Sell Starbucks brand energy bars and rehydration drinks as well as the usual fare. Oh, and don't forget the little canvas credit-card holders with the Starbucks logo and harness loop clip so your customers will have a way to pay for all the stuff they're consuming while they wait their turn.
Naturally, an insignificant fraction of the profits should be conspicuously channeled into anchor replacement initiatives as well as the bolting of any sections that are not perfectly protected with ordinary trad gear.
Do we have a business plan here or what?
Edit: Rick beat me to the punch. But not the value-added details I've supplied.